<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="_getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="_getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="goAddPage">添加商品</el-button>
            </el-col>
        </el-row>

        <!-- table表格区域 -->
        <el-table :data="goodslist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="商品名称" prop="goods_name"></el-table-column>
          <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
          <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
          <el-table-column label="创建时间" prop="add_time" width="130px">
            <template slot-scope="scope">
              {{scope.row.add_time | dateFormat}}
            </template>
          </el-table-column>
          <el-table-column label="操作" width="150px">
            <template slot-scope="scope">
              <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
              <el-button type="danger" icon="el-icon-delete" size="mini"
                         @click="removeById(scope.row.goods_id)"></el-button>
            </template>
          </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 15, 20, 25]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
        </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      goodslist: [],
      total: 0
    }
  },
  created() {
    this._getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async _getGoodsList() {
      const {data: res} = await this.$http.get(
          '/goods',{
              params: this.queryInfo
          }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败');
      }
      this.$message.success('获取商品列表成功')
      console.log(res);
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this._getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this._getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm(
          '此操作将永久删除该商品，是否继续？',
          '提示',
          {
              confirmButtonText: '确定',
              cancelButtonText:'取消',
              type: 'warning'
          }
      ).catch(err => err)

      if(confirmResult !== 'confirm') {
          return this.$message.info('已经取消删除')
      }

      const {data: res} = await this.$http.delete(`/goods/${id}`)

      if (res.meta.status !== 200) {
          return this.$message.error('删除失败！')
      }
      this.$message.success('删除成功！')
      this._getGoodsList()
    },
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style>

</style>